A newly graduated nurse on work permit (OPT)

Hello, I'm a newly graduated nurse with associate degree in nursing. I have just passed the board and currently waiting for my work permit to arrive. I studied at a college in Kansas, and I am kind of frustrated trying to find hospitals who hire foreign nurses. In other words, I need a hospital who sponsors international nurses to get work visa or green card. Do any of you have suggestions? Please? Every bit of it could help! Thanks!

How did you obtain OPT if you don't mind me asking. That is my first concern. I don't know where will hire people without certificate.
It seems like a lot of people who didn't graduate and earn certificate did not have any problem getting OPT.
Could you tell me how you got OPT?